IQAir

This next shot is detail level of the prefilter, showing how it exceeds the extent and quality of most true-HEPA filterson the market.

Again this is the prefilter.

Contrast this with the thin polyester blanket wraps most air purifiers call prefilters. 55% efficient at .3 microns is a prefilter better than many cheap HEPA, and almost all under-maintained electrostatics do as a unit.

Incredible Prefilter

Real Filters

Next is the size comparison between the 3.5 inch thick prefilter and the 4.5 inch thick main filter. That is alot of filtering power.

Fan Case

The last image shows the commitment to quality inside and out. The white object behind the grill is a support, not the fan. The fan is a large orange object, barely visible in the background.

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